Perusja

Perusja is a hypothetical neologism used in some online discussions about minimalism, modular design, and clear communication. It designates a principle of building complex systems from small, well-defined units by linking them with a simple, repeatable operation.

Etymology: The term is reported to derive from Finnish elements perus (basic, fundamental) and ja (and), though its coinage is not tied to any formal language tradition and has circulated mainly in informal forums since the early 2020s.

Definition and scope: Perusja emphasizes three ideas: modularity, basic primitives, and explicit interfaces. Practitioners apply perusja by decomposing problems into small modules, standardizing their interfaces, and composing larger outcomes through simple integration steps.

Applications: In software development, perusja resembles composition over inheritance, microservices, or plugin architectures; in education or writing, it encourages breaking topics into digestible units with consistent connectors.

Reception: As a nascent term, perusja lacks formal definition and is used variably. Critics say it risks vagueness and over-generalization. Related concepts include modularity, composition, and minimalism.